http://blog.foreignpolicy.com/posts/2014/04/15/ukraine_makes_good_on_threats_to_pounce_on_russian_protesters [quote]Over the past three days, officials in Kiev have fumed as pro-Russian activists seized government buildings in several eastern Ukrainian cities. They vowed to strike back, issued ultimatums for the activists to depart the buildings, and then let those deadlines lapse. On Tuesday, Kiev finally delivered on its threats.[/quote] The article includes a whole slew of videos from Ukraine detailing the Ukrainian operation to remove pro-Russian protesters, including the one above.

Ukraine beings "anti-terror" operation.

Ukraine moves against pro-Russian gunmen in east, triggering bloody gun battle [quote]MOSCOW — The conflict between pro-Russian gunmen and Ukraine’s authorities turned bloody on Sunday, with one security service officer killed and reports of people wounded on both sides, as the struggle for the country’s east escalated one week after separatists began systematically occupying government buildings. Gunfire — the first reported ­between authorities and pro-Russian separatists in the east — erupted as Ukraine declared that it would deploy its armed forces in a “large-scale anti-terrorist operation” against the burgeoning revolt in the Donetsk region.[/quote] http://www.washingtonpost.com/world/as-pro-russian-militants-ignore-deadline-ukraine-vows-to-continue-operation/2014/04/14/2f4bc1fa-c3bb-11e3-bcec-b71ee10e9bc3_story.html Pro-Russian militants in Ukraine defy government threats [quote]DONETSK, Ukraine — Defiant pro-Russian militants here in eastern Ukraine pushed this country to the brink of war or dissolution Monday, expanding their hold while the acting president failed to make headway in trying to end the crisis. After an ultimatum to the militants was ignored, the acting president, Oleksandr Turchynov, first vowed to rout them by force, then held out the offer of a referendum to decide Ukraine’s fate, then proposed a peacekeeping intervention by the United Nations.[/quote]